Pith Number

pith:BIF74M4F

pith:2018:BIF74M4F2W57TUCLOAXZUQTVNJ

not attested not anchored not stored refs pending

The Topology ToolKit

Charles Gueunet, Guillaume Favelier, Joshua A. Levine, Julien Tierny, Michael Michaux

arxiv:1805.09110 v2 · 2018-05-22 · cs.GR · cs.CG · cs.CV · eess.IV

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BIF74M4F2W57TUCLOAXZUQTVNJ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-17T23:40:24.130262Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a0bfe3385d5bbf9d04b702f9a42756a7621d2bb8f26bb67c9696c15bd3936ac

Aliases

arxiv: 1805.09110 · arxiv_version: 1805.09110v2 · doi: 10.48550/arxiv.1805.09110 · pith_short_12: BIF74M4F2W57 · pith_short_16: BIF74M4F2W57TUCL · pith_short_8: BIF74M4F

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/BIF74M4F2W57TUCLOAXZUQTVNJ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 0a0bfe3385d5bbf9d04b702f9a42756a7621d2bb8f26bb67c9696c15bd3936ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c253e5eb769655661c8364da12242d800ae706b014e4b89180758732c865b32",
    "cross_cats_sorted": [
      "cs.CG",
      "cs.CV",
      "eess.IV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2018-05-22T10:27:24Z",
    "title_canon_sha256": "7ccdb76f48002fe8a9aaa0b6850484940b47b713966f5b6fab163ed94cc695cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.09110",
    "kind": "arxiv",
    "version": 2
  }
}